This is an authentic ROBERTO COIN 18K White Gold Diamond .10ctw Bezel Stud Earrings. The earrings are crafted of 18 karat white gold and feature round brilliant cut diamonds, approximately .10 total carat weight, along with hidden synthetic rubies on the back. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.